# Atmosphere Phenomena Practice Quiz

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Use this quiz as a practice quiz for the Astmosphere Phenomena Test

• 1.

### You can calculate the __________________________ of air if you have the mass and the volume.

• A.

Pressure

• B.

Mass

• C.

Density

C. Density
Explanation
Density is the correct answer because it is a measure of how much mass is contained in a given volume. By knowing the mass and volume of air, one can calculate its density. Density is an important property of air as it affects its buoyancy, flow, and other physical characteristics.

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• 2.

### When you are at the top of a mountain, it is easier to lose your breath because there are less ________________________ molecules per cubic meter of air.

• A.

Oxygen

• B.

Nitrogen

• C.

Carbon dioxide

A. Oxygen
Explanation
When you are at the top of a mountain, it is easier to lose your breath because there are less oxygen molecules per cubic meter of air. At higher altitudes, the air pressure decreases, resulting in lower oxygen levels. This decrease in oxygen makes it harder for our bodies to take in an adequate amount of oxygen, leading to breathlessness and difficulty in breathing.

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• 3.

### The condition of the Earth's atmosphere at a particular time and place is known as _____________________.

• A.

Weather

• B.

Atmosphere

• C.

Water vapor

A. Weather
Explanation
The condition of the Earth's atmosphere at a particular time and place is known as weather.

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• 4.

### One of the most important features of the atmosphere is that it traps the energy from the Sun, allowing water to exist as a ________________________.

• A.

Solid

• B.

Liquid

• C.

Gas

B. Liquid
Explanation
The atmosphere traps the energy from the Sun, which allows water to exist as a liquid. This is because the energy from the Sun causes water to evaporate and rise into the atmosphere. The atmosphere then acts as a greenhouse, trapping some of this energy and preventing the water vapor from immediately condensing and falling back to the Earth as rain. Instead, the water vapor can remain in the atmosphere for longer periods of time, allowing it to condense and form liquid water droplets, which eventually fall as precipitation.

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• 5.

### This gas is almost four times greater than the concentration of oxygen in the Earth's atmosphere

• A.

Carbon dioxide

• B.

Argon

• C.

Nitrogen

C. Nitrogen
Explanation
Nitrogen is the correct answer because it is the gas that is almost four times greater in concentration than oxygen in the Earth's atmosphere. While carbon dioxide and argon are present in much smaller amounts, nitrogen makes up about 78% of the Earth's atmosphere, making it the most abundant gas.

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• 6.

### Which of the following is made up of three molecules of oxygen?

• A.

Ozone

• B.

Nitogen oxide

• C.

Sulfuric acid

A. Ozone
Explanation
Ozone is made up of three molecules of oxygen. Ozone is a molecule composed of three oxygen atoms bonded together. It is formed in the Earth's atmosphere when oxygen molecules are broken apart by ultraviolet radiation and the resulting oxygen atoms combine with other oxygen molecules. This reaction forms ozone, which plays a crucial role in protecting the Earth from harmful ultraviolet radiation.

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• 7.

### The atmospheric gas ______________________ forms clouds when it condenses.

• A.

Water vapor

• B.

Oxygen

• C.

Nitrogen

A. Water vapor
Explanation
Water vapor is the correct answer because it is the gaseous form of water present in the atmosphere. When water vapor cools and condenses, it forms tiny water droplets that come together to create clouds. Oxygen and nitrogen are also atmospheric gases, but they do not directly contribute to cloud formation.

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• 8.

### The layer in the atmosphere where weather occurs is called the

• A.

Trophospere

• B.

Mesosphere

• C.

Thermosphere

A. Trophospere
Explanation
The correct answer is the troposphere. The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to about 10-15 kilometers. It is the layer where weather occurs, including the formation of clouds, precipitation, and the mixing of air masses. The troposphere is characterized by decreasing temperature with increasing altitude, and it is where most of the Earth's weather phenomena take place.

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• 9.

### Instruments used to measure air pressure without the use of liquid are called

• A.

Aneroid thermometers

• B.

Aneroid hydrometers

• C.

Aneroid barometers

C. Aneroid barometers
Explanation
Aneroid barometers are instruments used to measure air pressure without the use of liquid. They consist of a sealed metal chamber that expands or contracts with changes in air pressure. This movement is then converted into a reading on a dial or scale, indicating the air pressure. Aneroid thermometers and aneroid hydrometers are not used to measure air pressure, but rather temperature and specific gravity, respectively.

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• 10.

### Almost half of the pollution that comes from humans is caused by _____________________________________________.

• A.

Factories and power plants

• B.

Car vehicle exhaust

• C.

Farming and Construction

B. Car vehicle exhaust
Explanation
Car vehicle exhaust is the correct answer because it is stated that almost half of the pollution caused by humans comes from this source. This implies that car vehicle exhaust is a significant contributor to pollution, more so than factories and power plants or farming and construction.

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• 11.

### Photochemical smog results from the interaction of pollutants in the presence of

• A.

Sunlight

• B.

Water

• C.

Air

A. Sunlight
Explanation
Photochemical smog is formed when pollutants in the atmosphere, such as nitrogen oxides and volatile organic compounds, react with sunlight. Sunlight provides the energy needed to initiate these reactions, leading to the formation of ground-level ozone and other harmful pollutants. Without sunlight, these reactions would not occur, and photochemical smog would not be formed. Therefore, sunlight is a crucial factor in the formation of photochemical smog.

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• 12.

### A ________________________ barometer measures air pressure by using a metal chamber containing a "liquid" that is sensitive to pressure changes.

• A.

Aneroid

• B.

Mercury

• C.

Millibar

B. Mercury
Explanation
A mercury barometer measures air pressure by using a metal chamber containing mercury, which is a liquid that is sensitive to pressure changes. As the air pressure changes, it causes the mercury to rise or fall in the chamber, providing a measurement of the atmospheric pressure.

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• 13.

### Most natural pollution in the air comes from ______________________

• A.

Forest fires

• B.

Volcanic eruptions

• C.

Burning fossil fuels

A. Forest fires
Explanation
Forest fires are a major source of natural air pollution because they release large amounts of smoke, particulate matter, and harmful gases into the atmosphere. These fires can occur naturally due to lightning strikes or as a result of human activities. The smoke and pollutants emitted during forest fires can have significant impacts on air quality, leading to respiratory issues and contributing to the formation of smog. Therefore, forest fires are a primary natural source of air pollution.

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• 14.

### As altitude increases, density decreases

• A.

True

• B.

False

A. True
Explanation
As altitude increases, the air pressure decreases, resulting in a decrease in density. This is because at higher altitudes, there are fewer air molecules present in a given volume of space. Therefore, the statement "As altitude increases, density decreases" is true.

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• 15.

### The Aurora Borealis occurs when high energy particles called lunar winds get caught in the Earth's magnetic field.

• A.

True

• B.

False

B. False
Explanation
The given statement is false. The Aurora Borealis, also known as the Northern Lights, occurs when charged particles from the sun collide with atoms in the Earth's atmosphere. These particles are mainly electrons and protons that are emitted by the sun during solar flares and coronal mass ejections. When these charged particles enter the Earth's atmosphere, they interact with gases such as oxygen and nitrogen, causing them to emit colorful lights. The phenomenon is not caused by lunar winds, but rather by solar particles interacting with the Earth's magnetic field.

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• 16.

### The atmosphere is made of 78% nitrogen and 21% carbon dioxide.

• A.

True

• B.

False

B. False
Explanation
The given statement is false because the atmosphere is actually made up of approximately 78% nitrogen and 21% oxygen, not carbon dioxide. Carbon dioxide makes up a very small percentage of the atmosphere, around 0.04%.

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• 17.

### Nitrogen oxides react with other air pollutants in the presence of sunlight to form acid rain.

• A.

True

• B.

False

B. False
Explanation
Nitrogen oxides (NOx) do contribute to the formation of acid rain, but they do not directly react with other air pollutants in the presence of sunlight to form acid rain. Acid rain is primarily formed when sulfur dioxide (SO2) and nitrogen oxides (NOx) are emitted into the atmosphere and then undergo chemical reactions with water, oxygen, and other chemicals to form sulfuric acid and nitric acid. Therefore, the given statement is false.

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• 18.

### The layer where meteoroids burn in the atmosphere is called the Thermosphere.

• A.

True

• B.

False

B. False
Explanation
The statement is false because the layer where meteoroids burn in the atmosphere is actually called the Mesosphere. The Thermosphere is the layer above the Mesosphere and is known for its high temperatures.

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• 19.

### The coldest layer of the atmosphere is the mesosophere; approaching -90*C.

• A.

True

• B.

False

A. True
Explanation
The mesosphere is indeed the coldest layer of the atmosphere. As you move higher in the atmosphere, the temperature decreases. In the mesosphere, temperatures can reach as low as -90Â°C. This is due to the thinness of the air in this layer and the decreasing amount of solar radiation that reaches it.

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• 20.

### Soil erosion, dust storms, and forest fires all account for less air pollution than burning fossil fuels.

• A.

True

• B.

False

A. True
Explanation
The statement is true because burning fossil fuels is a major contributor to air pollution. Soil erosion, dust storms, and forest fires can also contribute to air pollution, but their impact is generally less significant compared to the emissions released from burning fossil fuels. Fossil fuel combustion releases pollutants such as carbon dioxide, sulfur dioxide, nitrogen oxides, and particulate matter, which can have harmful effects on air quality and human health. Therefore, burning fossil fuels is a more significant source of air pollution compared to soil erosion, dust storms, and forest fires.

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• 21.

### The envelope of gasses that surround the Earth is called the weather.

• A.

True

• B.

False

B. False
Explanation
The statement is incorrect. The envelope of gases that surround the Earth is called the atmosphere, not the weather. The weather refers to the specific conditions of the atmosphere at a given time and place, such as temperature, humidity, wind, and precipitation.

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• 22.

### As the altitude decrease, the density also decreases.

• A.

True

• B.

False

B. False
Explanation
This statement is false. As the altitude decreases, the atmospheric pressure increases, which in turn increases the density of the air. Therefore, the correct answer is false.

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• 23.

### Factories produce less air pollution than motor vehicles.

• A.

True

• B.

False

A. True
Explanation
Factories typically produce less air pollution than motor vehicles because they are subject to stricter regulations and have more advanced pollution control systems in place. Additionally, factories are usually located in industrial areas away from residential areas, reducing the impact on air quality for the general population. On the other hand, motor vehicles emit pollutants directly into the atmosphere, contributing to air pollution in urban areas where they are heavily used. Therefore, it is generally true that factories produce less air pollution than motor vehicles.

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• 24.

### The temperature in the atmosphere alternates from later to layer by changing from colder to warmer.

• A.

True

• B.

False

A. True
Explanation
The statement is true because the temperature in the atmosphere does indeed alternate from layer to layer, with colder temperatures found at higher altitudes and warmer temperatures found at lower altitudes. This is due to the way heat is distributed in the atmosphere, with the lower layers being heated by the Earth's surface and the upper layers being colder due to their distance from the surface.

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• 25.

### Layers in the atmosphere are classified based on their temperature

• A.

True

• B.

False

A. True
Explanation
Layers in the atmosphere are indeed classified based on their temperature. This classification is known as atmospheric temperature structure and involves dividing the atmosphere into distinct layers based on how temperature changes with altitude. The five main layers are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has its own unique temperature characteristics, with temperature generally decreasing as altitude increases in the troposphere and mesosphere, and then increasing in the stratosphere and thermosphere. This classification helps scientists understand and study different atmospheric processes and phenomena.

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• 26.

### The atmosphere is essential to life because it allows water to exist in a gas form.

• A.

True

• B.

False

B. False
Explanation
The statement is false because the atmosphere is essential to life for several reasons, not just for allowing water to exist in a gas form. The atmosphere provides oxygen for respiration, protects us from harmful solar radiation, regulates temperature, and helps in the water cycle. While the atmosphere does play a role in allowing water to exist as a gas, it is not the sole reason why it is essential for life.

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• 27.

### Satellites orbit the Earth in what layer of the atmosphere?

exosphere
thermosphere
Exosphere
Thermosphere
Explanation
Satellites orbit the Earth in the exosphere and thermosphere layers of the atmosphere. The exosphere is the outermost layer of the Earth's atmosphere, where the air density is extremely low and satellites can orbit without experiencing much resistance. The thermosphere is the layer above the mesosphere and is characterized by high temperatures and the presence of ions. Satellites orbit in this layer because the high temperatures allow for efficient solar power generation and the ions in the thermosphere enable communication through ionospheric reflection.

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• 28.

### The weight of a column of air pressing down on an object causes _______________________.

pressure
air pressure
Explanation
The weight of a column of air pressing down on an object causes pressure or air pressure. When air molecules exert a force on an object, it creates a pressure that is proportional to the weight of the air above it. This pressure is responsible for various phenomena, such as atmospheric pressure, buoyancy, and the ability to lift objects with air pressure-based devices like airplanes and balloons.

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• 29.

### The layer of the atmosphere that contains the ozone layer is ___________________________.

stratosphere
Explanation
The layer of the atmosphere that contains the ozone layer is the stratosphere. The stratosphere is located above the troposphere and extends from about 10 to 50 kilometers above the Earth's surface. It is in the stratosphere that the ozone layer is found, which plays a crucial role in protecting life on Earth by absorbing harmful ultraviolet radiation from the sun.

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• 30.

### As you move up in the stratosphere, the temperature gets _________________________

warmer
hotter
Explanation
As you move up in the stratosphere, the temperature gets warmer and hotter. This is because the stratosphere is located above the troposphere, which is the lowest layer of the Earth's atmosphere. In the troposphere, temperature generally decreases with increasing altitude. However, in the stratosphere, temperature starts to increase with altitude due to the absorption of ultraviolet radiation by the ozone layer. Therefore, as you ascend through the stratosphere, the temperature gradually becomes warmer and hotter.

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• 31.

### Less than 1% of the atmosphere is made up of _____________________ gasses.

trace
Explanation
The correct answer is "trace" because it refers to a very small or insignificant amount. In the context of the question, it suggests that less than 1% of the atmosphere is composed of these gasses, indicating that they are present in a minuscule or negligible quantity.

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• 32.

### Acid rain occurs when ________________________ in the air mixes with sulfur oxides to form sulfuric acid.

water
water vapor
Explanation
Acid rain occurs when water or water vapor in the air mixes with sulfur oxides to form sulfuric acid.

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• 33.

### Animals produce the atmospheric gas ________________________   ____________________, which plants need to live.

carbon dioxide
Explanation
Animals produce carbon dioxide, an atmospheric gas that plants need to live. Plants use carbon dioxide during photosynthesis to produce oxygen and glucose, which is their main source of energy. This process helps to maintain the balance of gases in the atmosphere and supports the survival of both animals and plants.

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• 34.

### The __________________________ of a mountain top is its distance above sea level.

altitude
Explanation
The word "altitude" refers to the distance above sea level of a mountain top. It is a measure of elevation and indicates how high or low a point is in relation to the sea level.

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• 35.

### Harmful particles and gases in the air are known as

pollutants
Explanation
Harmful particles and gases in the air are commonly referred to as pollutants. These pollutants can be released from various sources such as industrial emissions, vehicle exhaust, and burning of fossil fuels. They can have detrimental effects on human health, the environment, and ecosystems. Examples of air pollutants include carbon monoxide, sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds. Monitoring and reducing the levels of pollutants in the air is important for maintaining air quality and protecting public health.

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• 36.

### An __________________ barometer is a barometer that measures pressure without the use of a liquid.

aneroid
Explanation
An aneroid barometer is a type of barometer that does not use a liquid to measure pressure. Instead, it uses a small, flexible metal box called an aneroid cell. The cell expands or contracts based on changes in air pressure, which in turn moves a needle on a dial to indicate the pressure. This design eliminates the need for a liquid-filled tube, making the aneroid barometer more portable and less prone to damage than traditional mercury or water barometers.

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• 37.

### New ___________________________ will help us improve our air quality.

regulations
Explanation
New regulations will help us improve our air quality. Regulations, in this context, refer to rules or laws that are put in place to govern and control certain activities. In this case, the new regulations are aimed at improving air quality, suggesting that they will introduce measures and guidelines to reduce pollution and promote cleaner practices. By implementing these regulations, it is expected that the air quality will be enhanced, leading to a healthier and safer environment for all.

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• 38.

### ________________________ smog forms when particles from burning coal mix with water droplets in humid air.

london
london type
London type
Explanation
Smog forms when particles from burning coal mix with water droplets in humid air. This can occur in various cities, including London, where coal burning was prevalent in the past. The term "london" refers to the city itself, while "london type" and "London type" could possibly refer to specific variations or characteristics of smog found in London.

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